Home / 10,028.16-13,838.04-5,779.08

Finding the Fourth Proportional to 10,028.16, 13,838.04 and 5,779.08

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Solution

The fourth proportional to 10,028.16, 13,838.04 and 5,779.08 is: 7,974.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,028.16 : 13,838.04 = 5,779.08 : x
  2. Step 2: Convert to fraction form
    10,028.16/13,838.04 = 5,779.08/x
  3. Step 3: Cross multiply
    10,028.16x = 13,838.04 × 5,779.08
  4. Step 4: Simplify right side
    10,028.16x = 79,971,140.20
  5. Step 5: Solve for x
    x = 79,971,140.20/10,028.16
  6. Step 6: Final answer
    x = 7,974.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.